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Circuit breaker

A technology for circuit breakers and molded case circuit breakers, which is applied to the protection switch operation/release mechanism and other directions, can solve the problems of the connecting plate 19 being not easily bent, reducing the basic reliability, and difficult to manufacture the connecting plate 19.

Inactive Publication Date: 2011-10-12
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] Therefore, the manufacture of the connection plate 19 becomes difficult, and the basic reliability of the connection plate 19 is lowered because it is not easily bent.

Method used

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Embodiment Construction

[0037] Hereinafter, the molded case circuit breaker will be described in detail with reference to the accompanying drawings. In the following description, with Figure 1 to Figure 3 The same / similar parts as those of the molded case circuit breaker described in will be given the same reference numerals, and thus repeated descriptions will be omitted.

[0038] Figure 4 is a perspective view showing a movable contactor and a connecting plate assembly of a molded case circuit breaker according to an exemplary embodiment, Figure 5 Disassemble the three-dimensional diagram for it.

[0039] Such as Figure 4 and Figure 5 As shown, the connecting plate assembly for rotatably fixing the movable contactor 17 may include a connecting plate 100 and a main body part 110 . The connecting plate assembly can be closely attached to the two side surfaces of the movable contactor 17 to make sufficient surface contact with the movable contactor 17 and at the same time firmly support the ...

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Abstract

The invention discloses a circuit breaker, especially a molded case circuit breaker, which comprises a fixed contactor connected with a power supply side terminal, a movable contactor configured to be capable of being connected or not connected with the fixed contactor, a connecting plate assembly configured to rotatably support the movable contactor, a heater coupled to the connecting plate assembly and a shaft configured to be fixedly connected with the connecting plate assembly and limit the rotation range of the movable contactor. The connecting plate assembly comprises a main body connected with the heater and a pair of connection plates extending to the shaft from the rear surface of the main body. The movable contactor is rotatably coupled to one end of the pair of connection plates.

Description

technical field [0001] The invention relates to a molded case circuit breaker, in particular to a structure for an opening and closing mechanism of a molded case circuit breaker. Background technique [0002] In general, a circuit breaker is an electrical device used in various wiring equipment, which is used to open and close circuits and ground circuits under normal load conditions, and to protect various circuits and equipment. Such as figure 1 and figure 2 As shown, the circuit breaker of the related art includes: a housing 1, which defines the appearance and is made of an insulating material; a power supply side terminal 2 and a load side terminal 3 existing at both ends of the housing 1 for circuit connection; and a fixed contactor 4 which connects the circuit to the circuit breaker in a state of being in contact with the power supply side terminal 2 inside the housing 1 . [0003] Also, the case 1 of the circuit breaker includes therein: a trip mechanism for dete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10
Inventor 刘元锺
Owner LSIS CO LTD
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